Option A. Argumentation is the logical reasoning or the process of debating.
Explanation:
Argumentation is defined as the process of forming reasons and of drawing conclusions in order to apply them to a case in discussion. Usually this process takes place in a context of a debate where every part wants to use their arguments to persuade or influence the thoughts and actions of others.
Because it really does a lot to your essay. It makes it sound a lot better and more advanced. It makes your essays sound more adult and not like children books. It makes it more mature.